Dry bond film laminate employing acrylic emulsion adhesives with improved crosslinker
US6248815A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1998 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Jun 4, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3412
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a water based laminating adhesive composition and a method of using thereof. More particularly, the invention relates to a water-based laminating adhesive comprising: a first component comprising at least one aqueous vinyl polymer dispersion (A) comprising the reaction product of i) at least one ethylenically unsaturated monomer; ii) at least one free radical initiator; and iii) optionally, at least one ethylenically unsaturated oligomer; and b) a second component comprising at least one water dispersible polyfunctional aziridine crosslinking agent (B). The adhesive optionally comprises at least one aqueous polyurethane polymer dispersion (C). Improved bonded properties of dry laminated flexible film substrates such as polyolefin, polyester and polyamide, as well as cellophane, metals or paper are obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.